macOS 13-14: While the Solo5G automatically selects 5GbE when connected to a 5Gb Ethernet switch and operates at full performance, the macOS System Settings Network control panel incorrectly displays a 100Mb connection. macOS 15 and later: This issue has been resolved, and the Network control panel now correctly reports a 5GbE connection.
macOS maximum frame size 1500 bytes. This has a negligible affect on throughput.